libc.info: putw

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`putw'--write a word (int)

*Synopsis*
     #include <stdio.h>
     int putw(int W, FILE *FP);
   *Description*
`putw' is a function, defined in `stdio.h'.  You can use `putw' to
write a word to the file or stream identified by FP.  As a side effect,
`putw' advances the file's current position indicator.
   RETURNS Zero on success, `EOF' on failure.
*Portability*
`putw' is a remnant of K&R C, it is not part of any ISO C Standard.
`fwrite' should be used instead.  In fact, this implementation of
`putw' is based upon `fwrite'.
   Supporting OS subroutines required: `fwrite'.